Timed Power Switching for Low-Standby Load Supply
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Solution Overview
Problem
Conventional power management systems in electronic devices result in continuous power consumption by control components even when they are not actively engaged, leading to inefficiency and energy wastage, particularly in standby modes.
Innovation Solution
An electronic apparatus with a power supply, control unit, and switching unit that only supplies power to the load for a predetermined time period, minimizing power consumption by disconnecting the control and switching units during standby modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional power management systems continuously power control components, then the system is always ready to operate, but power consumption increases during standby modes
Solution Approach 1:
The patent implements dynamic power management by switching control components between powered and unpowered states based on operational needs. The control unit monitors system state and activates or deactivates power supply to control components accordingly, making the power consumption dynamic rather than static.
Solution Approach 2:
The system employs periodic power supply to control components, providing power only during necessary operational intervals. The power supply is activated during operation and deactivated during standby periods, creating a periodic on-off pattern that reduces overall energy consumption while maintaining system functionality when needed.
2Productivity
If control components are continuously powered, then timing and switching control is always available, but energy wastage increases over time
Solution Approach 1:
The control components serve themselves by autonomously managing their own power supply based on system state. The control unit determines when power is needed and activates or deactivates power to control components independently, eliminating the need for continuous external power management and reducing energy wastage.
Solution Approach 2:
The system changes the power supply parameter from a constant state to a variable state. Power voltage or current to control components is adjusted based on operational requirements - fully powered during operation, completely or partially deactivated during standby - thereby optimizing the balance between control availability and energy consumption.
3Speed
If the switching unit remains connected to power supply, then it can respond immediately to activation signals, but power consumption continues during standby mode
Solution Approach 1:
The system prepares for rapid response by maintaining the switching unit in a pre-charged or pre-positioned state during standby, rather than completely powering it down. Critical capacitors or storage elements remain charged to enable immediate switching action when activation occurs, balancing fast response with reduced standby power consumption.
Data Source
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Figure 3(a)~3(c)
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AI summary
The invention is directed at an electronic apparatus (12) for temporarily supplying a load (16) with power, comprising: a power supply (14), a control unit (20), a switching unit (22) and an activation unit (24), wherein the activation unit (24) electrically connects the power supply (14) to the switching unit (22) via a first power supply path when the activation unit (24) is in an active state, wherein the switching unit (22) electrically connects the power supply (14) to the switching unit (22) via a second power supply path and to the load (16) when the switching unit (22) is in a closed state, wherein the control unit (20) is configured to switch the switching unit (22) to the closed state for a predetermined time period when the activation unit (24) is actuated, so that the load (16) and, via the second power supply path, the switching unit (22) is supplied with power for the predetermined time period.